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Merge #16443: refactor: have CCoins* data managed under CChainState

Browse Source 
582d2cd747 Cover UTXO set access with lock annotations (James O'Beirne)
5693530685 refactor: have CCoins* data managed under CChainState (James O'Beirne)
fae6ab6aed refactor: pcoinsTip -> CChainState::CoinsTip() (James O'Beirne)

Pull request description:

  This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):

  Parent PR: #15606
  Issue: #15605
  Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal

  ---

  This change encapsulates UTXO set data within CChainState instances, removing global data `pcoinsTip` and `pcoinsviewdb`. This is necessary if we want to maintain multiple chainstates with their own rendering of the UTXO set.

  We introduce a class CoinsViews which consolidates the construction of a CCoins* hierarchy.

  This commit could be broken into smaller pieces, but it would require more ephemeral diffs to, e.g., temporarily change CCoinsViewDB's constructor invocations.

ACKs for top commit:
  Sjors:
    reACK 582d2cd747
  MarcoFalke:
    ACK 582d2cd747

Tree-SHA512: ec9d904fe5dca8cd2dc4b7916daa5d8bab30856dd4645987300f905e0a19f9919fce4f9d1ff03eda982943ca73e6e9a746be6cf53b46510de36e8c81a1eafba1
This commit is contained in:
MarcoFalke
2019-08-15 12:47:04 -04:00
parent 8bd5e0af99 582d2cd747
commit 85883a9f8e
17 changed files with 247 additions and 100 deletions
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9
src/net_processing.cpp
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@@ -1291,11 +1291,12 @@ bool static AlreadyHave(const CInv& inv) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
LOCK(g_cs_orphans);
if (mapOrphanTransactions.count(inv.hash)) return true;
}
const CCoinsViewCache& coins_cache = ::ChainstateActive().CoinsTip();
return recentRejects->contains(inv.hash) ||
mempool.exists(inv.hash) ||
pcoinsTip->HaveCoinInCache(COutPoint(inv.hash, 0)) || // Best effort: only try output 0 and 1
pcoinsTip->HaveCoinInCache(COutPoint(inv.hash, 1));
coins_cache.HaveCoinInCache(COutPoint(inv.hash, 0)) || // Best effort: only try output 0 and 1
coins_cache.HaveCoinInCache(COutPoint(inv.hash, 1));
}
case MSG_BLOCK:
case MSG_WITNESS_BLOCK:
@@ -1844,7 +1845,7 @@ void static ProcessOrphanTx(CConnman* connman, std::set<uint256>& orphan_work_se
EraseOrphanTx(orphanHash);
done = true;
}
mempool.check(pcoinsTip.get());
mempool.check(&::ChainstateActive().CoinsTip());
}
}
@@ -2497,7 +2498,7 @@ bool static ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStr
if (!AlreadyHave(inv) &&
AcceptToMemoryPool(mempool, state, ptx, &fMissingInputs, &lRemovedTxn, false /* bypass_limits */, 0 /* nAbsurdFee */)) {
mempool.check(pcoinsTip.get());
mempool.check(&::ChainstateActive().CoinsTip());
RelayTransaction(tx.GetHash(), *connman);
for (unsigned int i = 0; i < tx.vout.size(); i++) {
auto it_by_prev = mapOrphanTransactionsByPrev.find(COutPoint(inv.hash, i));